A low cost, battery-operated, portable, real-time aerosol analyzer is not available for monitoring diesel particulate matter (DPM) concentrations in underground mines. This study summarizes a field evaluation conducted at an underground limestone mine to evaluate the potential of the TSI AM 510 portable photometer (equipped with a Dorr-Oliver cyclone and 1.0-μm impactor) to qualitatively track time-weighted average mass and elemental, organic, and total carbon (TC) measurements associated with diesel emissions. The calibration factor corrected correlation coefficient (R2) between the underground TC and photometer measurements was 0.93. The main issues holding back the use of a photometer for real-time estimation of DPM in an underground mine are the removal of non-DPM-associated particulate matter from the aerosol stream using devices, such as a cyclone and/or impactor and calibration of the photometer to mine-specific aerosol.
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机译：不能使用低成本，电池供电的便携式实时气溶胶分析仪来监测地下矿井中的柴油颗粒物（DPM）浓度。这项研究总结了在地下石灰岩矿山进行的现场评估，以评估TSI AM 510便携式光度计（配备有Dorr-Oliver旋风分离器和1.0-μm撞击器）的潜力，以定性跟踪时间加权平均质量和元素，有机，以及与柴油排放相关的总碳（TC）测量。地下TC和光度计测量值之间的校正因子校正相关系数（R2）为0.93。阻碍使用光度计实时估算地下矿井中DPM的主要问题是使用旋风分离器和/或撞击器等设备从气溶胶流中去除了与DPM无关的颗粒物，并进行了校准。光度计可用于矿井专用的气溶胶。
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